(+)-cis Compounds of the formula
wherein R is lower alkyl and R₁ is pyridyl, one of the groups
or phenyl or phenyl substituted by up to 3 substituents selected from the group consisting of nitro, hydroxy, halogen, lower alkoxy and lower alkanoyloxy,
(-)-cis enantiomers, (±)-cis racemates and pharmaceutically acceptable acid addition salts thereof are active as calcium antagonists, and accordingly, are useful as agents for lowering blood pressure and as agents for treating ischemia. They can be prepared from the corresponding 3-hydroxy compounds by reacting same with an appropriate acylating agent.
式中的(+)-顺式化合物
其中 R 是低级烷基,R₁ 是
吡啶基、基团之一
或苯基或最多被 3 个取代基取代的苯基,这些取代基选自由硝基、羟基、卤素、低级烷氧基和低级烷酰氧基组成的组、
(-)-顺式对映体、(±)-顺式外消旋体及其药学上可接受的酸加成盐具有
钙拮抗剂的活性,因此可用作降血压药物和治疗缺血的药物。它们可以由相应的 3-羟基化合物与适当的酰化剂反应制备而成。